// cookies.js
// Derived from the Bill Dortch code at http://www.hidaho.com/cookies/cookie.txt

var today = new Date();
var expiry = new Date(today.getTime() + 365 * 24 * 60 * 60 * 1000);

function getCookieVal (offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) { endstr = document.cookie.length; }
	return unescape(document.cookie.substring(offset, endstr));
	}

function GetCookie (name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) {
			return getCookieVal (j);
			}
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break; 
		}
	return null;
	}

function DeleteCookie (name,path,domain) {
	if (GetCookie(name)) {
		document.cookie = name + "=" +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
		}
	}

function SetCookie (name,value,expires,path,domain,secure) {
  document.cookie = name + "=" + escape (value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
	}
// end of cookie stuff

function getElementsByClass( searchClass, domNode, tagName) {
	if (domNode == null) domNode = document;
	if (tagName == null) tagName = '*';
	var el = new Array();
	var tags = domNode.getElementsByTagName(tagName);
	var tcl = " "+searchClass+" ";
	for(i=0,j=0; i<tags.length; i++) {
		var test = " " + tags[i].className + " ";
		if (test.indexOf(tcl) != -1)
			el[j++] = tags[i];
	}
	return el;
}

function visible(choice,state){
	var elist=getElementsByClass(choice);
	for(i=0; i<elist.length; i++){
		elist[i].style.display=state;
		if(state == 'none'){
			elist[i].style.width=0
		}else{
			elist[i].style.width='120px'
		}
	}
}

function setUS(){
	visible('us','inline');
	visible('eu','none');
	SetCookie('AmazonSite', 'us');
}

function setEU(){
	visible('us','none');
	visible('eu','inline');
	SetCookie('AmazonSite', 'eu');
}

function setDefault(){
	var c=GetCookie('AmazonSite');
	if (c== 'us' || c== null){
		setUS();
	} else {
		if(c == 'eu'){
			setEU();
		}
	}
}